From 3968e81ba644f10a7d45bae2539560db9edac501 Mon Sep 17 00:00:00 2001
From: Yang Yingliang <yangyingliang@huawei.com>
Date: Wed, 7 Dec 2022 23:00:06 +0800
Subject: [PATCH] wifi: libertas: if_usb: don't call kfree_skb() under spin_lock_irqsave()
Git-commit: 3968e81ba644f10a7d45bae2539560db9edac501
Patch-mainline: v6.3-rc1
References: git-fixes
It is not allowed to call kfree_skb() from hardware interrupt
context or with interrupts being disabled. So replace kfree_skb()
with dev_kfree_skb_irq() under spin_lock_irqsave(). Compile
tested only.
Fixes: a3128feef6d5 ("libertas: use irqsave() in USB's complete callback")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20221207150008.111743-3-yangyingliang@huawei.com
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/net/wireless/marvell/libertas/if_usb.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/wireless/marvell/libertas/if_usb.c b/drivers/net/wireless/marvell/libertas/if_usb.c
index 32fdc4150b60..2240b4db8c03 100644
--- a/drivers/net/wireless/marvell/libertas/if_usb.c
+++ b/drivers/net/wireless/marvell/libertas/if_usb.c
@@ -637,7 +637,7 @@ static inline void process_cmdrequest(int recvlength, uint8_t *recvbuff,
priv->resp_len[i] = (recvlength - MESSAGE_HEADER_LEN);
memcpy(priv->resp_buf[i], recvbuff + MESSAGE_HEADER_LEN,
priv->resp_len[i]);
- kfree_skb(skb);
+ dev_kfree_skb_irq(skb);
lbs_notify_command_response(priv, i);
spin_unlock_irqrestore(&priv->driver_lock, flags);
--
2.35.3